diff --git a/Lib/test/_test_eintr.py b/Lib/test/_test_eintr.py
index 493932d6c6d441..b7e23660dd0a85 100644
--- a/Lib/test/_test_eintr.py
+++ b/Lib/test/_test_eintr.py
@@ -369,6 +369,8 @@ def os_open(self, path):
 
     @unittest.skipIf(sys.platform == "darwin",
                      "hangs under macOS; see bpo-25234, bpo-35363")
+    @unittest.skipIf(sys.platform.startswith('netbsd'),
+                     "hangs on NetBSD; see gh-137397")
     def test_os_open(self):
         self._test_open("fd = os.open(path, os.O_RDONLY)\nos.close(fd)",
                         self.os_open)